Hi. I use Elements 12 on a PC at work and all has been fine. Suddenly, and for no reason, the move tool no longer works properly. I can still grab an image and move it around the page, but I cannot drag it onto a different page (I used to just drag it up to the tabs at the top). Also, whenever I open an image now it is automatically locked - that didn't use to happen either. I know Elements 12 is a bit old now, but really hoping someone can help me.

Thanks John. Never in my life used a forum and completely out of my depth. Also, this is where you realise I am a complete novice when it comes to the technical side of things. So, in response to your message:

Mac or Windows, and EXACTLY which version of the operating system? - just found the following, so hope that is the info you need:

Have you recently allowed an operating system update? - Not sure. This computer automatically updates from time to time when I close it down at the end of the day. So it may have done? I checked for updates within Photoshop Elements itself just now and it says it is all up to date.

Are you using a computer Administrator account with full read/write permission? - Sorry I don't know how to answer that one, but I believe so.

Thank you. I check update history and it updated only yesterday. Interestingly I notice the updates are all for windows 10, which I now realise this PC is/has. Not sure why when I copied the info from PSE itself it said Windows 8? (However, that has not been a problem for me in the past as been using it for about 2 years now and never had a problem until now.)

Sorry, but this is my complete lack of technical knowhow - no idea when it comes to device drivers and graphic adapters. That link you kindly provided to nVidia - what should I be selecting from those drop down menus? I am so sorry, just don't know what I should be looking at.

Thank you. I check update history and it updated only yesterday. Interestingly I notice the updates are all for windows 10, which I now realise this PC is/has. Not sure why when I copied the info from PSE itself it said Windows 8? (However, that has not been a problem for me in the past as been using it for about 2 years now and never had a problem until now.)

The explanation is that Windows 10 did not exist when PSE12 was coded. The latest know Win version was used by Adobe programmers.